oracle 12c建视图
时间: 2023-08-22 18:13:58 浏览: 45
在Oracle 12c中创建视图的语法如下:
CREATE \[OR REPLACE\] \[FORCE|NOFORCE\] VIEW view_name \[(column1, column2, ...)\]
AS
SELECT column1, column2, ...
FROM table_name
\[WHERE condition\];
其中,view_name是要创建的视图的名称,column1, column2, ...是视图中包含的列名,table_name是视图所基于的表名,condition是可选的筛选条件。
例如,如果我们要创建一个名为"employees_view"的视图,包含"employee_id"和"employee_name"两列,基于"employees"表,可以使用以下语句:
CREATE VIEW employees_view (employee_id, employee_name)
AS
SELECT employee_id, employee_name
FROM employees;
这将在Oracle 12c中创建一个名为"employees_view"的视图,包含"employee_id"和"employee_name"两列,基于"employees"表。
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